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play_sound now fully fledged audio player

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This commit is contained in:
Veit Heller
2017-06-14 16:47:42 -04:00
parent 59c9e798e0
commit 45af2e8664
1 changed files with 72 additions and 30 deletions
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98
play_sound/Source/MainComponent.cpp
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@@ -4,14 +4,19 @@ enum State {
Done, Done,
Start, Start,
Play, Play,
Stop Stop,
Paused,
Pause
}; };
class MainContentComponent : public AudioAppComponent, class MainContentComponent : public AudioAppComponent,
public ChangeListener, public ChangeListener,
public Button::Listener { public Button::Listener,
public Timer {
public: public:
MainContentComponent() : state(Done) { MainContentComponent() : state(Done) {
addAndMakeVisible(&time);
time.setText("00:00:00", NotificationType::dontSendNotification);
addAndMakeVisible(&openbtn); addAndMakeVisible(&openbtn);
openbtn.setButtonText("Open"); openbtn.setButtonText("Open");
@@ -29,8 +34,9 @@ public:
stopbtn.setColour(TextButton::buttonColourId, Colours::red); stopbtn.setColour(TextButton::buttonColourId, Colours::red);
stopbtn.setEnabled(false); stopbtn.setEnabled(false);
formatManager.registerBasicFormats(); formats.registerBasicFormats();
transportSource.addChangeListener(this); source.addChangeListener(this);
setSize(300, 200); setSize(300, 200);
@@ -41,28 +47,42 @@ public:
shutdownAudio(); shutdownAudio();
} }
void changeListenerCallback(ChangeBroadcaster* source) override { int truncn(double i, int n) {
if (source == &transportSource) { return ((int) trunc(i)) % n;
if (transportSource.isPlaying()) changeState(Play); }
else changeState(Done);
void timerCallback() override {
RelativeTime pos = RelativeTime(source.getCurrentPosition());
String str = String::formatted("%02d:%02d:%02d", truncn(pos.inMinutes(), 60),
truncn(pos.inSeconds(), 60),
truncn(pos.inMilliseconds(), 1000)/10);
time.setText(str, NotificationType::dontSendNotification);
}
void changeListenerCallback(ChangeBroadcaster* s) override {
if (s == &source) {
if (source.isPlaying()) changeState(Play);
else if(state == Stop || state == Play) changeState(Done);
else if (state == Pause) changeState(Paused);
} }
} }
void prepareToPlay(int s, double r) override { void prepareToPlay(int s, double r) override {
transportSource.prepareToPlay(s, r); source.prepareToPlay(s, r);
} }
void getNextAudioBlock(const AudioSourceChannelInfo& buf) override { void getNextAudioBlock(const AudioSourceChannelInfo& buf) override {
if (readerSource == nullptr) { if (readers == nullptr) {
buf.clearActiveBufferRegion(); buf.clearActiveBufferRegion();
return; return;
} }
transportSource.getNextAudioBlock(buf); source.getNextAudioBlock(buf);
} }
void releaseResources() override { void releaseResources() override {
transportSource.releaseResources(); source.releaseResources();
} }
void paint (Graphics& g) override { void paint (Graphics& g) override {
@@ -70,9 +90,11 @@ public:
} }
void resized() override { void resized() override {
openbtn.setBounds(10, 10, getWidth() - 20, 20); int w = getWidth() - 20;
playbtn.setBounds(10, 40, getWidth() - 20, 20); time.setBounds(10, 10, w, 20);
stopbtn.setBounds (10, 70, getWidth() - 20, 20); openbtn.setBounds(10, 30, w, 20);
playbtn.setBounds(10, 60, w, 20);
stopbtn.setBounds(10, 90, w, 20);
} }
@@ -81,9 +103,10 @@ private:
TextButton openbtn; TextButton openbtn;
TextButton playbtn; TextButton playbtn;
TextButton stopbtn; TextButton stopbtn;
AudioFormatManager formatManager; Label time;
ScopedPointer<AudioFormatReaderSource> readerSource; AudioFormatManager formats;
AudioTransportSource transportSource; ScopedPointer<AudioFormatReaderSource> readers;
AudioTransportSource source;
State state; State state;
void changeState(State news) { void changeState(State news) {
@@ -95,20 +118,35 @@ private:
case Done: case Done:
stopbtn.setEnabled(false); stopbtn.setEnabled(false);
playbtn.setEnabled(true); playbtn.setEnabled(true);
transportSource.setPosition (0.0); source.setPosition(0.0);
time.setText("00:00:00", NotificationType::dontSendNotification);
break; break;
case Start: case Start:
playbtn.setEnabled (false); source.start();
transportSource.start(); playbtn.setButtonText("Pause");
stopbtn.setButtonText("Stop");
break; break;
case Play: case Play:
stopbtn.setEnabled (true); stopbtn.setEnabled(true);
startTimer(30);
break;
case Pause:
source.stop();
stopTimer();
break;
case Paused:
playbtn.setButtonText("Resume");
stopbtn.setButtonText("Restart");
break; break;
case Stop: case Stop:
transportSource.stop(); source.stop();
stopTimer();
playbtn.setButtonText("Play");
break; break;
} }
} }
@@ -124,22 +162,26 @@ private:
if (!chooser.browseForFileToOpen()) return; if (!chooser.browseForFileToOpen()) return;
File file(chooser.getResult()); File file(chooser.getResult());
AudioFormatReader* reader = formatManager.createReaderFor(file); AudioFormatReader* reader = formats.createReaderFor(file);
if (reader == nullptr) return; if (reader == nullptr) return;
ScopedPointer<AudioFormatReaderSource> news = new AudioFormatReaderSource(reader, true); ScopedPointer<AudioFormatReaderSource> news = new AudioFormatReaderSource(reader, true);
transportSource.setSource(news, 0, nullptr, reader->sampleRate); source.setSource(news, 0, nullptr, reader->sampleRate);
playbtn.setEnabled(true); playbtn.setEnabled(true);
readerSource = news.release(); readers = news.release();
} }
void playClicked() { void playClicked() {
changeState(Start); if (state == Stop || state == Done || state == Paused) changeState(Start);
else if (state == Play) changeState(Pause);
} }
void stopClicked() { void stopClicked() {
changeState(Stop); if (state == Paused) {
changeState(Done);
changeState(Start);
} else changeState(Stop);
} }
}; };